Unverified Commit 3349b3d0 authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: imx-card: Need special setting for ak4497 on i.MX8MQ 



The SAI on i.MX8MQ don't support one2one ratio for mclk:bclk, so
the mclk frequency exceeds the supported range of codec for
the case that sample rate is larger than 705kHZ and format is
S32_LE. Update the supported width for such case.

Fixes: aa736700 ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1641292835-19085-2-git-send-email-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent e4c35e75

sound/soc/fsl/imx-card.c

+16 −1
Original line number Diff line number Diff line
@@ -553,8 +553,23 @@ static int imx_card_parse_of(struct imx_card_data *data) 
			link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1;



			/* sai may support mclk/bclk = 1 */

			if (of_find_property(np, "fsl,mclk-equal-bclk", NULL))

			if (of_find_property(np, "fsl,mclk-equal-bclk", NULL)) {

				link_data->one2one_ratio = true;

			} else {

				int i;



				/*

				 * i.MX8MQ don't support one2one ratio, then

				 * with ak4497 only 16bit case is supported.

				 */

				for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) {

					if (ak4497_fs_mul[i].rmin == 705600 &&

					    ak4497_fs_mul[i].rmax == 768000) {

						ak4497_fs_mul[i].wmin = 32;

						ak4497_fs_mul[i].wmax = 32;

					}

				}

			}

		}



		link->cpus->of_node = args.np;